Guide to the Crustacea, Arachnida, Onychophora and Myriopoda exhibited in the Department of Zoology, British Museum (Natural History) .. . legs, and has the terminal segment (or segments) sub-divided;it is used as a feeler. There are no poison-glands in theseanimals. These Arachnids are inhal)itants of the warmer parts of theglobe. They are found in damp places under stones or fallenleaves, in the crevices of rocks, and in other similar fossil species have been discovered in the Carboniferousstrata. The Pedipalpi are divided into two sub-orders. Sub-order I.—UEOPYGI. In these Pe
Guide to the Crustacea, Arachnida, Onychophora and Myriopoda exhibited in the Department of Zoology, British Museum (Natural History) .. . legs, and has the terminal segment (or segments) sub-divided;it is used as a feeler. There are no poison-glands in theseanimals. These Arachnids are inhal)itants of the warmer parts of theglobe. They are found in damp places under stones or fallenleaves, in the crevices of rocks, and in other similar fossil species have been discovered in the Carboniferousstrata. The Pedipalpi are divided into two sub-orders. Sub-order I.—UEOPYGI. In these Pedipalpi the cephalothorax is longer than wide. Thetarsi of the third pair of appendages are divided into eight or ninesegments. There are two tribes. TmBE—UnOTniCHA. Uropygi in which the carapace is unsegmented and bears well-developed eyes. On account of their lotig and many-jointed tail and of their 88 Guide to AracJniida. Table-case superlicial resemblance to scorpions, the Urotricha are known as No. 21. Whip-scorpions. All the known genera (which number ten) are referred to tlie family Thclyplwnidac, which is now restricted. Fig. (TlielypJwnus caiidatus), x 2. to Soutli-Eastern Asia and Tropical America. Of tlie genera,ThchfpJionus, which is widely distributed in the Oriental region,is the richest in species. The largest known species of The-lyphonid {Mastigopwctns gigautcus), a species which is foundin the southern part of North America, sometimes reaches alength of more than two and a half inches. In the Carboniferousperiod the family was represented by the genus (icraUiiiird,which has l)een discovered l)oth in Europe and in NorthAmerica. Whip-scorpions live beneath stones or fallen tree-trunks, or inburrows in the soil. Thev feed mostlv on insects, wdiich they Pedipalpi. 89 crush with their powerful pincers. When irritated tiaey eject an Table-caseoffensive acid secretion, wiiich is tlie product of two large glands ^^- ^-^•opening on the end of the
Size: 1345px × 1858px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1910, booksubjectcrustacea, bookyear19
